Chapter 6 telecommunications and networks- MIS- MBA-1st Trimester- MBS

1. Chapter 5
Telecommunications
& Networks

2. • When computers are networked, two industries –
computing and communication – converge
• The internet, intranet, extranet are networking
business processes and employees together and
connecting them to their customers, suppliers
and other stakeholders
• Companies and workgroups can collaborate more
creatively, manage business operations and
resources effectively and compete in today’s fast-
changing economy successfully
• Cisco Telepresence
Concept of Network

3. Concept of Network
• Network is an interconnected or interlinked
chain, group of system
• The number of possible connections on a
network is N(N–1) or N2 –N
• Metcalfe’s law states that the usefulness, or
utility, of a network equals the square of the
number of users

4. Telecommunication Trends

5. Telecommunications-Based Services

6. • Internet networking technologies are being
used as technology platform
– Web browser suites
– HTML Web page editors
– Network management software
– Firewalls
• Open systems use common standards for
hardware, software, applications, and networks
– Internet networking technologies are a common
standard for open systems
• Middleware
– A general term for any programming that mediates
between two separate programs

7. Digital Network Technologies
• Telecommunications are being revolutionized
by switch from analog to digital
– Analog: voice-oriented transmission
– Digital: discrete pulse transmission
• Benefits
– Higher transmission speeds
– Moves larger amounts of information
– Greater economy and much lower error rates
– Transmits multiple types of communications (data,
voice, video) on the same circuits
• Wireless Technologies

8. Business Application
• Telecommunications networks now play a vital
and pervasive role in Web-enabled…
– E-business processes
– Electronic commerce
– Enterprise collaboration
– Other applications that support operations,
management, and strategic objectives

9. Business Value
• Use of telecommunication network can
– Cut costs
– Shorten business lead time
– Reduces response time
– Support eCommerce
– Improve collaboration
– Develop online operation processes
– Share resources
– Lock in customers and suppliers
– Develop new products and services

10. Strategic Value of Telecommunications Networks
Strategic Capabilities e-Business Example Business Value
Overcome Geographical
barriers:
Capture information about
business transaction from
remote locations
Use internet and extranets to
transmit customer orders from
traveling salespeople to a
corporate data center for order
processing and inventory control
Provides better customer
service by reducing delay in
filing orders and improves
cash flow by speeding up the
billing of customers
Overcome time barriers:
Provide information to
remote locations
immediately after it is
requested
Credit authorization at the point
of sale using online POS
networks
Credit inquiries can be made
and answered in seconds.
SSN score assessment
Overcome cost barriers:
Reduce the cost of more
traditional means of
communication
Desktop videoconferencing with
business partners using internet,
intranet and extranets
Reduces expensive business
trips
Collaboration improves the
quality of decisions reached.
Overcome structural
barriers:
Support linkages for
competitive advantage
B2B eCommerce websites for
transactions with suppliers and
customers using Internet &
extranets
Fast, convenient services lock
in customers and suppliers
IaaS, PaaS, Saas

11. Internet Applications
• The Internet is the global system of interconnected
computer networks that use the Internet protocol suite
(TCP/IP) to link devices worldwide.
• Most popular Internet applications and uses
– E-mail
– Instant messaging
– Browsing the Web
– Newsgroups
– Chat rooms
– Publish opinions, subject matter, creative work
– Buy and sell
– Downloading (data, software, reports, pictures, music,
videos)

12. Business Use of the Internet

13. Business Value of the Internet
• Online discount eTrading
• Bank’s Online Bill payment
• Worldwide Online Class
• Mass customization and
Personalized product
recommendation
• ISP providing Application
development & warehouse
• Online Payment System with
eCommerce website
• Online booking of flight costs 90%
less
• Brick-and-Mortar Banking
transactions incur 50%to 90% more,
however they charge fees for
online service.
• App based customer support
Develop new web-based Products
Develop new Markets & channels
Attract new Customers
Generate new Revenue sources
Reduce Costs of doing business
Increase customer Loyalty & Retention

14. Role of Intranets
• A network inside an organization that uses internet
technologies to provide an internet-like environment
• Many companies have sophisticated and widespread
intranets, offering…
– Detailed data retrieval & information sharing
– Collaboration & communication
– Personalized customer profiles
– Support to business processes
– Links to the Internet
• Intranets are protected by password, encryption,
firewall
• Customers, suppliers, and other business partners
can access an intranet via extranet links

15. Business Value of Intranets
• Communication and Collaboration
– Intranet browser can send and receive e-mail, voice mail,
pages and faxes within organization
– Use groupware to improve team & project collaboration
with services such as MS Sharepoint, OneNote
• Discussion group, chat rooms, audio/video conference
• Web Publishing
– Easy and low cost designing, publishing and accessing
multimedia business information internally via enterprise
intranet portal
– Company newsletter, product catalog, web pages
– Intranet web search to locate business information

16. Business Value of Intranets
• Business Operations and Management
– Platform for developing and deploying critical business
applications to support business operations and
managerial decision making across the inter-networked
enterprise installed
– order processing, inventory control, Database & EAI
• Intranet Portal management
– Managing the functions of intranet
– Maintaining and access control of various hardware and
software components
– Protection against unauthorized access, computer viruses,
directory management

17. Intranet

18. Extranet
• Network links that use Internet technologies to
connect the intranet of a business to the intranets of
another partners and customers through
– Direct private network links,
– Private secure Internet links (VPN)
– Unsecured Extranet Link between a company and others
via the Internet, relying on encryption of sensitive data
and firewall security systems
• Extranet enables customers, suppliers, consultants,
subcontractors, business prospects and others to
access selected intranet Website and other company
databases

19. Extranet

20. Types of Communications Networks
• Primary types of communications networks
– Wide Area
– Local Area
– Virtual Private
– Client/Server
– Peer-to-peer
Network Topologies